:root {
  color-scheme: light;
  --bg: #f3efe4;
  --bg-strong: #e5ddca;
  --panel: rgba(255, 251, 242, 0.86);
  --panel-border: rgba(71, 57, 34, 0.12);
  --text: #1d1b16;
  --muted: #665f52;
  --accent: #d67c18;
  --accent-strong: #9c4708;
  --good: #2f6f41;
  --warn: #9c4708;
  --shadow: 0 22px 40px rgba(71, 57, 34, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(214, 124, 24, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(103, 146, 186, 0.16), transparent 24%),
    linear-gradient(180deg, #f7f2e8 0%, var(--bg) 100%);
}

body {
  padding: 24px;
}

button,
input {
  font: inherit;
}

.app-shell {
  max-width: 1500px;
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 20px;
  align-items: end;
  margin-bottom: 20px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--accent-strong);
}

.hero h1,
.panel h2 {
  margin: 0;
  line-height: 1;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
}

.hero-copy {
  margin: 16px 0 0;
  max-width: 64ch;
  color: var(--muted);
  line-height: 1.6;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stat-card,
.panel {
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 18px;
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.stat-card strong {
  font-size: clamp(1.5rem, 4vw, 2.6rem);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(340px, 0.95fr);
  gap: 20px;
}

.sidebar {
  display: grid;
  gap: 20px;
}

.panel {
  padding: 18px;
}

.panel-viewer {
  display: flex;
  flex-direction: column;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
  margin-bottom: 16px;
}

.panel-header h2 {
  font-size: 1.35rem;
}

.ghost-button,
button {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: white;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
  box-shadow: 0 10px 18px rgba(156, 71, 8, 0.22);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  box-shadow: none;
  border: 1px solid var(--panel-border);
}

button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

button:active,
.ghost-button:active {
  transform: translateY(0);
}

#viewer {
  flex: 1;
  height: clamp(320px, 52vh, 640px);
  border-radius: 20px;
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(133, 185, 229, 0.24), transparent 34%),
    linear-gradient(180deg, #fff8ee 0%, #eef4f5 100%);
}

.hint-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.control-grid,
.form-grid,
.action-stack {
  display: grid;
  gap: 16px;
}

.range-field {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 82px;
  gap: 12px;
  align-items: center;
}

.range-field span,
label span {
  font-size: 0.92rem;
  color: var(--muted);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

input[type="number"],
input[type="datetime-local"] {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(71, 57, 34, 0.14);
  background: rgba(255, 255, 255, 0.82);
  padding: 11px 13px;
  color: var(--text);
}

.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid.compact {
  margin-top: 14px;
}

.form-grid label {
  display: grid;
  gap: 8px;
}

.action-row {
  margin-top: 14px;
}

#map {
  min-height: 240px;
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-strong);
}

.action-stack button {
  width: 100%;
}

.status-line {
  margin: 14px 0 0;
  color: var(--muted);
  min-height: 1.2em;
}

.graph-panel {
  margin-top: 20px;
}

#graph {
  min-height: 320px;
}

.is-good {
  color: var(--good);
}

.is-warn {
  color: var(--warn);
}

@media (max-width: 1180px) {
  .hero,
  .layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body {
    padding: 14px;
  }

  .hero-stats,
  .form-grid,
  .range-field {
    grid-template-columns: 1fr;
  }

  .range-field {
    gap: 8px;
  }

  .hint-row {
    flex-direction: column;
  }

  #viewer {
    height: clamp(280px, 42vh, 420px);
  }
}